Patent US738148A successfully refreshed from Google Patents.
US738148A
Expired / Lapsed
US
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Apparatus for extraction of precious metals from their ores.
Assignee: BAXERES GOLD EXTRACTION COMPANY Ltd
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Filing: 1902-12-26
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Granted: 1903-09-08
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Expires: 1922-12-26
Abstract
No abstract record available.
Inventors
- 👤 Jose Baxeres De Alzugaray
- 👤 William Alexander Mercer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:25
CPC Classifications
B; B01; B01F; B01F33/00; B01F33/40; B01F33/402
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1906-09-07 | 1907-03-09 | 1907-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-09-07 | 1911-03-09 | 1911-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-09-07 | 1915-03-09 | 1915-09-08 | $7700.00 | Window Closed / Lapsed |